Mix flour and salt in medium bowl. Cut in butter and shortening with pastry blender or 2 knives until mixture resembles coarse crumbs. Add ice water, 1 Tbsp. at a time, mixing lightly with fork until dry ingredients are evenly moistened and mixture clings together when pressed into ball. (If necessary, stir in more ice water, 1 tsp. at a time, until dough sticks together.) Flatten dough to 1/2-inch-thick round on large sheet of plastic wrap; wrap tightly. Refrigerate 25 min. or until chilled.